Syntax

Parameters

Remarks

Items can be defined either by specifying the name of an <item element>, or by directly by listing each item in the set.

Different types of stimulus elements use the items in difference ways. If the stimulus is a text element, items represent the actual text items to be presented. If the stimulus is a picture, sound, or video, then the items are the names of the files containing the relevant media. If the stimulus is a port element, the items are strings of 0's and 1's representing 8-bit TTL signals. Characters in an item are specified in descending bit order, with the leftmost 0 or 1 value representing the highest bit and the rightmost value representing the lowest order bit. See How to Present TTL Signals Through the Parallel Port for more details.

Examples

The following selects items defined in an external items element named "presidentitems":